public class Test {
    public static void main(String[] args) {
        Integer i = 100;
        Integer j = 100;
        System.out.println(i == j);

        Integer a = 150;
        Integer k = 150;
        System.out.println(a == k);
    }
    public static void main2(String[] args) {
        Integer i = 10;
        int a = i;
        System.out.println(a);

        int k = i.intValue();
        System.out.println(k);
    }
    public static void main1(String[] args) {
        int i = 10;
        Integer a = i;

        System.out.println(i);


        Integer k = Integer.valueOf(a);
        System.out.println(k);
    }
}
